Double-axle toy building element



FIG. 1 is a left perspective view of a double-axle toy building element, showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a side view thereof, which is common to both sides.

FIG. 4 is an end view thereof, which is common to both ends.

FIG. 5 is a bottom perspective view thereof; and,

FIG. 6 is a bottom view thereof. 

CLAIM I claim the ornamental design for a double-axle toy building element, as shown and described. 